diff --git a/src/ucd-tools/src/case.c b/src/ucd-tools/src/case.c
index c414ff3b..04c9736a 100644
--- a/src/ucd-tools/src/case.c
+++ b/src/ucd-tools/src/case.c
@@ -2822,9 +2822,8 @@ static const struct case_conversion_entry case_conversion_data[] =
 codepoint_t ucd_toupper(codepoint_t c)
 {
 	int begin = 0;
-	int size  = sizeof(case_conversion_data)/sizeof(case_conversion_data[0]);
-	int end   = size;
-	while (begin <= end && (begin + end) / 2 < size)
+	int end   = sizeof(case_conversion_data)/sizeof(case_conversion_data[0]);
+	while (begin <= end)
 	{
 		int pos = (begin + end) / 2;
 		const struct case_conversion_entry *item = (case_conversion_data + pos);
@@ -2841,9 +2840,8 @@ codepoint_t ucd_toupper(codepoint_t c)
 codepoint_t ucd_tolower(codepoint_t c)
 {
 	int begin = 0;
-	int size  = sizeof(case_conversion_data)/sizeof(case_conversion_data[0]);
-	int end   = size;
-	while (begin <= end && (begin + end) / 2 < size)
+	int end   = sizeof(case_conversion_data)/sizeof(case_conversion_data[0]);
+	while (begin <= end)
 	{
 		int pos = (begin + end) / 2;
 		const struct case_conversion_entry *item = (case_conversion_data + pos);
@@ -2860,9 +2858,8 @@ codepoint_t ucd_tolower(codepoint_t c)
 codepoint_t ucd_totitle(codepoint_t c)
 {
 	int begin = 0;
-	int size  = sizeof(case_conversion_data)/sizeof(case_conversion_data[0]);
-	int end   = size;
-	while (begin <= end && (begin + end) / 2 < size)
+	int end   = sizeof(case_conversion_data)/sizeof(case_conversion_data[0]);
+	while (begin <= end)
 	{
 		int pos = (begin + end) / 2;
 		const struct case_conversion_entry *item = (case_conversion_data + pos);